This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. The DPR-A can tune in 100 kHz or 25 kHz steps across the UHF television band, with a selectable output power of 10, 25 or 50 mW. The purely digital architecture utilizes AES 256-CTR encryption for high level security applications. The external antenna provides exceptional operating range.

The transmitter is specially designed with high efficiency digital circuitry for extended operating time on two AA batteries, with status indicated by a multi-color LED. An IR (infrared) port is included to simplify setup with IR enabled receivers. Updates can be made via SD card.

The input amplifier uses an ultra low noise op-amp for quiet operation. It is gain controlled with a wide range, dual envelope limiter, providing over 30 dB of headroom above full modulation. A 24-bit A-D converter digitizes the audio, then filters out supersonic noise above 21 kHz.

Accessories

DPR-A Digital Plug-on Transmitter This unique digital plug-on transmitter design will match any microphone or line level source via a standard XLR connector. The DPR-A can tune in coarse or fine steps across the UHF television band with a selectable output power of 10, 25 or 50 mW. The purely digital architecture supports AES 256-CTR encryption for high level security applications. The transmitter is specially designed with high efficiency digital circuitry for extended operating time on two AA batteries, with status indicated by a multi-color LED. An IR (infrared) port is included to simplify setup with IR enabled receivers. Updates can be made via SD card. The input amplifier uses an ultra low noise op-amp for quiet operation. It is gain controlled with a wide range, dual envelope limiter, providing over 30 dB of headroom above full modulation. A 24-bit A-D converter digitizes the audio, then filters out supersonic noise above 21 kHz. The DPR-A has an external SMA antenna jack, which accepts Lectrosonics steel flex wire AMM or elbowed AMJ series antennas. Setup and adjustments are achieved through a backlit LCD, membrane switches and an intuitive menu structure. The DPR-A also offer hands free setup and adjustment using audible tones via the LectroRM mobile app. In this manner, the DPR-A can be powered on and off, and the frequencies and audio levels can be adjusted. Other features include input gain adjustment in 1 dB increments over a 55 dB range and adjustable low frequency audio roll-off for 3 dB down points at 25, 35, 50, 70, 100, 120 or 150 Hz to control subsonic and very low frequency audio content. Dual color LEDs indicate audio input level and the power LED changes color under low battery conditions. Recording Function The record and transmit function can be used simultaneously (only in regions outside the United States). For US models, when the unit is transmitting and recording is turned on, the audio in the RF transmission will stop, but the battery status will still be sent to the receiver. The DPR-A can be jammed with timecode sync for each audio file alignment during post production and uses a temperature compensated crystal (TCXO) for <1 PPM accuracy. transmitting simultaneously. WARNING: Moisture, including talent’s sweat, will damage the transmitter. Cover the DPR-A in our specially designed silicone cover (DPRACVR) or other protection to

Features

• Wideband UHF tuning range – Available in A1B1 and B1C1 bands
• Accepts microphone or line level signals
• Selectable 5, 15, 48 volt phantom power
• Selectable 10/25/50 mW RF output power
• Adjustable low frequency roll-off
• Powered by two AA batteries
• IR (infrared) port for fast setup
• Remote controlled “dweedle” tones (audio tone set-up control)
• Removeable SMA-mount antenna (required for operation)
• Solid machined aluminum housing
• On board recording with time code jam sync
• Encryption 256 Bit AES, CTR Mode with 4 key policies
• Simultaneous record and transmit feature for models sold outside the USA.
• Time code jam sync with <1PPM accuracy
• On board recording
• Encryption 256 Bit AES, CTR Mode 470.100 -10

Specifications

• DPR-A: 470.100 - 607.950 MHz
• BATTERY CAUTION: Risk of explosion if the battery
• DPR-A/E01: 470.100 - 614.375 MHz is replaced by an incorrect type
• DPR-A/E01-B1C1: 537.600 - 691.175MHZ
• DPR-A/E09-A1B1: 470.100 - 614.375 MHz
• Frequency Selection Steps: 25 kHz
• RF Power output: Selectable 10/25/50 mW
• E09 version: 10/25mW
• Frequency stability: ± 0.002%
• Digital modulation: 8PSK
• Spurious radiation: US: Compliant with
• Equivalent input noise: –125 dBV (A-weighted)
• Input level: Nominal 2 mV to 300 mV,
• Input impedance: 1K Ohm
• Input limiter: Dual envelope type; 30 dB range plate on the door.
• Gain control range: 55 dB in 1 dB steps; digital control
• Modulation indicators: • Dual bi-color LEDs indicate
• Storage media: microSDHC memory card (HC Type)
• File format: .wav files (BWF)
• A/D converter: 24-bit
• Encryption: AES 256-CTR
• Sampling rate: 48 kHz
• HD mono: 24 bit - 144 kb/s
• Frequency Response: 25 Hz to 20 kHz, (+0, -3dB)
• Low frequency Roll-off: Adjustable for -3dB @ 25, 35, 50, 70, 100,
• Type: Analog mic/line level compatible;
• Input Dynamic Range: 110 dB (A), before limiting microphones
• Audio Input Jack: Standard 3-pin XLR (female) Timecode:
• Phantom Power: 5V @ 18 mA max., 15V @ 15 mA max.
• Connector: 3.5 mm TRS
• Signal voltage: 0.5 Vp-p to 5 Vp-p
• IR (infrared) port: For quick setup by transferring settings
• Antenna: External SMA antenna jack
• Format: SMPTE 12M - 1999 compliant
• Battery: Two 1.5 Volt AA (lithium recommended)
• Battery Life: Energizer Ultimate Lithium Batteries /
• Dynamic range: 110 dB (A), before limiting
• Distortion: < 0.035%
• Celsius: -20 to 50
• Fahrenheit: -5 to 122